articleEuropean Polymer JournalJul 9, 2024HYBRID OA

Advancing sustainable shape memory polymers through 4D printing of polylactic acid-polybutylene adipate terephthalate blends

DRDavood RahmatabadiMKMahdi KhajepourABAbbas BayatiKMKiandokht MirasadiMAMohammad Amin Yousefi

University of Tehran · Iran Polymer and Petrochemical Institute · +1 more institution

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Abstract

One of the major challenges in 4D printed Shape Memory Polymers (SMPs) is their slow response to thermal stimuli. Synthetic carbon fillers have been introduced to address this issue; however, their use comes with environmental concerns. On the other hand, Polylactic Acid (PLA) is commonly used for 3D/4D printing of SMPs, but it requires softening to achieve large deformations. This research paper introduces a sustainable solution through blending PLA with Polybutylene Adipate Terephthalate (PBAT) that not only addresses these challenges but also possesses environmental eco-friendliness due to PBAT’s high biodegradability rate. PBAT with weight percentages of 15 %, 30 %, and 45 % is utilized to soften PLA, and…

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175
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26.86
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100%
References
55
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Authors

11

Topics & keywords

Topics
Keywords
  • Polylactic acid
  • Materials science
  • Composite material
  • Polybutylene terephthalate
  • Porosity
  • Adipate
  • Shape-memory polymer
  • Composite number
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